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Journal of Applied Fluid Mechanics، جلد ۱۷، شماره ۹، صفحات ۱۹۵۵-۱۹۶۶
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عنوان انگلیسی Impact of Vortex Generators' Location on Supersonic Asymmetric Jet Control
چکیده انگلیسی مقاله The usefulness of the supersonic jet is inhabitable in the Aerospace industry. However, control of the supersonic jet is important for efficient mixing and noise attenuation. Particularly, asymmetric jets are better than axisymmetric jets in rapid mixing. Considering this, the experimental investigation has been carried out for the vortex generators or tab-controlled Mach 1.6 elliptic jet. To compare the impact of the locations of the vortex generators, they are deployed at the diametrically opposite locations of the nozzle outlet along the major or longest axis and the minor or shortest axis, respectively. The investigations have been carried out using the centerline pressure distributions employing the Pitot probe and the Schlieren flow visualizations. A maximum of 66.43% reduction in supersonic length has been observed from the centerline pressure distributions for the vortex generator placed along the shortest axis. In addition, the Schlieren flow visualizations confirm substantial distortions in the shock cell structures when the vortex generators are placed along the shortest axis which results in noise mitigation. The study concluded that the impact of the vortex generator, placed along the shortest axis, is superior in the manipulation of shock cell structure, efficient mixing, and thereby noise mitigation than those placed along the longest axis.
کلیدواژه‌های انگلیسی مقاله Supersonic Jet,Supersonic length,Asymmetric jet,Elliptical Nozzle,Tab,Vortex generator
نویسندگان مقاله T. Paramesh |
Department of Aerospace Engineering, JAIN (Deemed-to-be University), Bengaluru, 560069, India

T. Jana |
Department of Aerospace Engineering, B.M.S. College of Engineering, Bengaluru, 560019, India

M. Kaushik |
Department of Aerospace Engineering, Indian Institute of Technology, Kharagpur, 721302, India

نشانی اینترنتی https://www.jafmonline.net/article_2468_dd2e4c0b2ad1297203c09e1571cdffe6.pdf
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